1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jek_recluse [69]
3 years ago
7

A geneticist grows 15 pea plants for each experiment. Assume that he has carried out an infinite number of experiments and measu

red the mean height of the plants each time. He finds that the population mean of the plant heights is 6.5 feet with a standard deviation of 0.5 feet. In what interval will 95% of the sample means occur?
the options are
a. 6.47 & 6.53 feet
b. 6.37 & 6.63 feet
c. 6.35 & 6.65 feet
d. 6.24 & 6.76 feet
Mathematics
2 answers:
daser333 [38]3 years ago
6 0

With beginner statistics, you have learned about the 68-95-99.7 rule. As the picture shows, the standard deviation shows how the height of the plants would vary from the population mean.


You see as the heights move one standard deviation away from the right and left of the peak, 68% of plants sampled would have the height between 6 to 7 feet.


Now for one more step, to include 95% of samples you would add two standard deviations away. Therefore you would add 1 feet higher and lower to the population mean.


=95% of the samples would have the height between 5.5 feet to 7.5 feet. 


Hope that helped! I love statistics so if you'd like me to go into more detail over the 68-95-99.7 rule


Volgvan3 years ago
6 0

Answer:

D. 6.24 & 6.76

Step-by-step explanation:

The interval for 95% of the sample means is given by,  µ ± \frac{σ}{\sqrt{n} } where µ is the population mean, σ is the standard deviation, and n is the sample size.

You might be interested in
Which function can represent the height, y, of the railing in inches according to the horizontal distance in inches, x, from the
hodyreva [135]

The function representing the height is y = 36 - \frac{3}{4} x.

<h3>What is function?</h3>

A formula, rule, or legislation that specifies how one variable (the independent variable) and another variable are related (the dependent variable). In mathematics, functions exist everywhere, and they are crucial for constructing physical links in the sciences.

<h3>What is fraction?</h3>

Any number of equal parts is represented by a fraction, which also represents a portion of a whole. A fraction, such as one-half, eight-fifths, or three-quarters, indicates how many components of a particular size there are when stated in ordinary English.

Given that,

Height of rails h is 36in.

The rate of decrement is 9 inches for every 12 horizontal inches,

We represent the rate (r) as a fraction.

r = -\frac{9}{12} (negative, because it decreases),

r = -\frac{3}{4},

So, the function is

Y = h + r × x

Where,

X is distance from top

So, y = 36 -\frac{3}{4}x

To know more about function, visit:

brainly.com/question/14418346

#SPJ4

4 0
9 months ago
Determine which expressions could be used to help find each component of the ice cream cone. ( answer choices are in picture que
grigory [225]

Answer:

1). a

2). b

3). c

4). d

Step-by-step explanation:

From the picture of a cone attached,

Radius of the circular top = r

Height of the cone = h

Slant height of the cone 'l' = 6

Area of the circular top of the cone with radius 'r' = πr²

Amount of space inside the cone = Volume of the cone = \frac{1}{2}\pi r^{2} h

The amount of wrapper needed to cover the side of the ice cream cone, not including the circular top of the cone = πrl = πr(6 in.)

The vertical height 'h' of the cone when the cone is standing upright = \sqrt{6^2-r^2}

[By Pythagoras theorem, l² = h² + r² ⇒ h = \sqrt{l^2-r^2}]

3 0
2 years ago
There are 5people trying for 3openings how many possible outcomes are there ​
Zigmanuir [339]

Answer:

60

Step-by-step explanation:

5×4×3 = 60

Alternately,

5C3 × 3! = 60

8 0
3 years ago
2+6g=11-3g solve for g
storchak [24]
2+6g=11-3g
-2+3g -2+3g
9g=9
--- ---
9. 9
G=1
4 0
3 years ago
Read 2 more answers
Find the quotient of: (-20xyz) (5zy)​
vichka [17]

Answer:

the answer would be -4x

Step-by-step explanation:

dividing (-20xyz) by (5zy) = 3

5 0
3 years ago
Other questions:
  • The number 943 is between what two tens
    5·2 answers
  • How to find the value of x
    12·1 answer
  • Which expression has the greatest value:
    5·1 answer
  • How many triangles can be constructed with angle measurements ​ 90°,45°,50° ​ ?
    15·1 answer
  • Who could help me please and thank you
    10·1 answer
  • The bases in a softball diamond are located at the corners of a 3600 ft^2 square. How far is a throw from second base to home pl
    13·1 answer
  • A cyclist travels at an average speed of 15 mph for 3 hours.<br> How far did she travel in miles?
    10·1 answer
  • Please help I really need <br><br> Zoom in so it won’t be blurry
    15·1 answer
  • Cole and rose are compairing their heights. cole is 7.1 meters tall. Rose is 20 centimeters shorter than cole
    8·2 answers
  • Solve please will mark brainliest
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!